Magnesium Oxide

Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 10.24.2014 Page 1 of 7 Magnesium Oxide

SECTION 1 : Identification of the substance/mixture and of the supplier Product name : Magnesium Oxide Manufacturer/Supplier Trade name: Manufacturer/Supplier Article number: S25413 Recommended uses of the product and uses restrictions on use: Manufacturer Details: AquaPhoenix Scientific 9 Barnhart Drive, Hanover, PA 17331

Supplier Details: Fisher Science Education 15 Jet View Drive, Rochester, NY 14624

Emergency telephone number: Fisher Science Education Emergency Telephone No.: 800-535-5053

SECTION 2 : Hazards identification

Classification of the substance or mixture:

Not classified for physical or health hazards under GHS.

Hazard statements: Precautionary statements: If medical advice is needed, have product container or label at hand Keep out of reach of children Read label before use

Other Non-GHS Classification: WHMIS NFPA/HMIS

NFPA SCALE (0-4) HMIS RATINGS (0-4)

SECTION 3 : Composition/information on ingredients

Ingredients:

CAS 1309-42-8 Magnesium hydroxide >98 %

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Percentages are by weight

SECTION 4 : First aid measures Description of first aid measures After inhalation: Loosen clothing as necessary and position individual in a comfortable position.Move exposed to fresh air. Give artificial respiration if necessary. If breathing is difficult give oxygen.Get medical assistance if cough or other symptoms appear. After skin contact: Rinse/flush exposed skin gently using soap and water for 15-20 minutes.Seek medical advice if discomfort or irritation persists. After eye contact: Protect unexposed eye. Rinse/flush exposed eye(s) gently using water for 15-20 minutes. Remove contact lens(es) if able to do so during rinsing. Seek medical attention if irritation persists or if concerned. After swallowing: Rinse mouth thoroughly. Do not induce vomiting. Have exposed individual drink sips of water. Seek medical attention if irritation, discomfort or vomiting persists.Never give anything by mouth to an unconscious person.

Most important symptoms and effects, both acute and delayed: Irritation, Nausea,Headache, Shortness of breath.; Indication of any immediate medical attention and special treatment needed: If seeking medical attention, provide SDS document to physician.Physician should treat symptomatically.

SECTION 5 : Firefighting measures Extinguishing media Suitable extinguishing agents: Use appropriate fire suppression agents for adjacent combustible materials or sources of ignition. Use water, dry chemical, chemical foam, carbon dioxide, or alcohol-resistant foam. For safety reasons unsuitable extinguishing agents: Special hazards arising from the substance or mixture: Combustion products may include carbon oxides or other toxic vapors.Thermal decomposition can lead to release of irritating gases and vapors.Magnesium oxide Advice for firefighters: Protective equipment: Use NIOSH-approved respiratory protection/breathing apparatus. Additional information (precautions): Move product containers away from fire or keep cool with water spray as a protective measure, where feasible.Use spark-proof tools and explosion-proof equipment.Avoid generating dust; fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard.Avoid inhaling gases, fumes, dust, mist, vapor, and aerosols.Avoid contact with skin, eyes, and clothing.

SECTION 6 : Accidental release measures Personal precautions, protective equipment and emergency procedures: Wear protective equipment. Ensure that air-handling systems are operational.Ensure adequate ventilation. Environmental precautions: Prevent from reaching drains, sewer or waterway. Collect contaminated soil for characterization per Section 13. Should not be released into environment. Methods and material for containment and cleaning up: Keep in suitable closed containers for disposal.Wear protective eyeware, gloves, and clothing. Refer to Section 8.Always obey local regulations.Dust deposits should not be allowed to accumulate on surfaces, as these may

Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 10.24.2014 Page 3 of 7 Magnesium Oxide

form an explosive mixture if they are released into the atmosphere in sufficient concentration. Avoid dispersal of dust in the air (i.e., clearing dust surfaces with compressed air). Collect solids in powder form using vacuum with (HEPA filter). Evacuate personnel to safe areas. Reference to other sections:

SECTION 7 : Handling and storage Precautions for safe handling: Minimize dust generation and accumulation. Follow good hygiene procedures when handling chemical materials. Refer to Section 8.Do not eat, drink, smoke, or use personal products when handling chemical substances. Avoid contact with eyes, skin, and clothing. Conditions for safe storage, including any incompatibilities: Store away from incompatible materials.Protect from freezing and physical damage.Keep away from food and beverages.Provide ventilation for containers. Avoid storage near extreme heat, ignition sources or open flame. Store in cool, dry conditions in well sealed containers. Store with like hazards

SECTION 8 : Exposure controls/personal protection

Control Parameters: , , OSHA PEL TWA (Total Dust) 15 mg/m3 (50 mppcf*) , , ACGIH TLV TWA (inhalable particles) 10 mg/m3 Appropriate Engineering controls: Emergency eye wash fountains and safety showers should be available in the immediate vicinity of use/handling.Provide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapor or dusts (total/respirable) below the applicable workplace exposure limits (Occupational Exposure Limits-OELs) indicated above.It is recommended that all dust control equipment such as local exhaust ventilation and material transport systems involved in handling of this product contain explosion relief vents or an explosion suppression system or an oxygen deficient environment.Ensure that dust-handling systems (such as exhaust ducts, dust collectors, vessels, and processing equipment) are designed in a manner to prevent the escape of dust into the work area (i.e., there is no leakage from the equipment).Use under a fume hood Respiratory protection: Not required under normal conditions of use. Where risk assessment shows air-purifying respirators are appropriate use a full-face particle respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering controls.When necessary use NIOSH approved breathing equipment. Protection of skin: Select glove material impermeable and resistant to the substance.Select glove material based on rates of diffusion and degradation.Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices.Use proper glove removal technique without touching outer surface. Avoid skin contact with used gloves.Wear protective clothing. Eye protection: Wear equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).Safety glasses or goggles are appropriate eye protection.

Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 10.24.2014 Page 4 of 7 Magnesium Oxide

General hygienic measures: Perform routine housekeeping.Wash hands before breaks and at the end of work.Avoid contact with skin, eyes, and clothing.Before wearing wash contaminated clothing.

SECTION 9 : Physical and chemical properties

Appearance (physical Explosion limit lower: Not determined White powder state,color): Explosion limit upper: Not determined

Odor: Not Determined Vapor pressure: Not determined

Odor threshold: Not determined Vapor density: Not determined

pH-value: Not determined Relative density: 3.580 g/cm3

Melting/Freezing point: 2,852 deg C (5,166 deg F) Solubilities: insoluble

Boiling point/Boiling 3,600 deg C (6,512 deg F) Partition coefficient (n- Not determined range: at 1,013 hPa (760 mmHg) octanol/water):

Flash point (closed Auto/Self-ignition Not determined Not determined cup): temperature:

Decomposition Evaporation rate: Not determined Not determined temperature:

a. Kinematic:Not Flammability determined Not determined Viscosity: (solid,gaseous): b. Dynamic: Not determined

Density: Not determined

SECTION 10 : Stability and reactivity

Reactivity:Nonreactive under normal conditions. Chemical stability:Stable under normal conditions. Possible hazardous reactions:None under normal processing Conditions to avoid:Incompatible Materials. Incompatible materials:Strong acids.Strong bases.Oxidizing agents. Hazardous decomposition products:

SECTION 11 : Toxicological information

Acute Toxicity: No additional information.

Chronic Toxicity: No additional information.

Corrosion Irritation: No additional information.

Sensitization: No additional information.

Single Target Organ (STOT): No additional information.

Numerical Measures: No additional information.

Carcinogenicity: No additional information.

Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 10.24.2014 Page 5 of 7 Magnesium Oxide

Mutagenicity: No additional information.

Reproductive Toxicity: No additional information.

SECTION 12 : Ecological information

Ecotoxicity Persistence and degradability: Bioaccumulative potential: Mobility in soil: Other adverse effects:

SECTION 13 : Disposal considerations

Waste disposal recommendations: Contact a licensed professional waste disposal service to dispose of this material.Dispose of empty containers as unused product.Product or containers must not be disposed with household garbage.It is the responsibility of the waste generator to properly characterize all waste materials according to applicable regulatory entities (US 40CFR262.11).Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. Chemical waste generators must also consult local, regional, and national hazardous waste regulations. Ensure complete and accurate classification.

SECTION 14 : Transport information

UN-Number Not Regulated. UN proper shipping name Not Regulated. Transport hazard class(es) Packing group:Not Regulated Environmental hazard: Transport in bulk: Special precautions for user:

SECTION 15 : Regulatory information

United States (USA) SARA Section 311/312 (Specific toxic chemical listings): SARA Section 313 (Specific toxic chemical listings): None of the ingredients is listed RCRA (hazardous waste code): None of the ingredients is listed TSCA (Toxic Substances Control Act): All ingredients are listed. CERCLA (Comprehensive Environmental Response, Compensation, and Liability Act): None of the ingredients is listed

Proposition 65 (California):

Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 10.24.2014 Page 6 of 7 Magnesium Oxide

Chemicals known to cause cancer: None of the ingredients is listed Chemicals known to cause reproductive toxicity for females: None of the ingredients is listed Chemicals known to cause reproductive toxicity for males: None of the ingredients is listed Chemicals known to cause developmental toxicity: None of the ingredients is listed

Canada

Canadian Domestic Substances List (DSL): All ingredients are listed. Canadian NPRI Ingredient Disclosure list (limit 0.1%): None of the ingredients is listed Canadian NPRI Ingredient Disclosure list (limit 1%): 1309-42-8 Magnesium hydroxide

SECTION 16 : Other information

This product has been classified in accordance with hazard criteria of the Controlled Products Regulations and the SDS contains all the information required by the Controlled Products Regulations.Note:. The responsibility to provide a safe workplace remains with the user.The user should consider the health hazards and safety information contained herein as a guide and should take those precautions required in an individual operation to instruct employees and develop work practice procedures for a safe work environment.The information contained herein is, to the best of our knowledge and belief, accurate.However, since the conditions of handling and use are beyond our control, we make no guarantee of results, and assume no liability for damages incurred by the use of this material.It is the responsibility of the user to comply with all applicable laws and regulations applicable to this material. GHS Full Text Phrases:

Abbreviations and acronyms: IMDG: International Maritime Code for Dangerous Goods IATA: International Air Transport Association GHS: Globally Harmonized System of Classification and Labelling of Chemicals ACGIH: American Conference of Governmental Industrial Hygienists CAS: Chemical Abstracts Service (division of the American Chemical Society) NFPA: National Fire Protection Association (USA) HMIS: Hazardous Materials Identification System (USA) WHMIS: Workplace Hazardous Materials Information System (Canada) DNEL: Derived No-Effect Level (REACH) PNEC: Predicted No-Effect Concentration (REACH) CFR: Code of Federal Regulations (USA) SARA: Superfund Amendments and Reauthorization Act (USA) RCRA: Resource Conservation and Recovery Act (USA) TSCA: Toxic Substances Control Act (USA) NPRI: National Pollutant Release Inventory (Canada) DOT: US Department of Transportation

Effective date : 10.24.2014

Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com Safety Data Sheet according to 29CFR1910/1200 and GHS Rev. 3 Effective date : 10.24.2014 Page 7 of 7 Magnesium Oxide

Last updated : 03.19.2015

Created by Global Safety Management, Inc. -Tel: 1-813-435-5161 - www.gsmsds.com